Is cursing time considered disbelief?
Wa ‘alaykum assalam wa rahmatullah wa barakatuh.
I pray you are well.
Such comments are inappropriate because of the hadith quoted in the question. Although the comments are directed to the year specifically, and time in general, Allah is the one who decreed the matters that occur in that time. All of His actions are full of wisdom and benefit for us, so criticism of time is an indirect insult to Him.
This is something a believer should abstain from. If we are fair in our outlook – no matter how intense trials are – in every moment we have more blessings than difficulties.
Is Cursing Time Kufr?
No, cursing time is not kufr, but it is a sin that a believer sees as serious and should repent from. Scholars have stated that believing in time itself as the direct cause of calamities is considered shirk. However, the context of the statements above is not that. Rather, it is a criticism of time as a period in which such things occur. That is not kufr. [Nawawi, Sharh Sahih Muslim]
May Allah grant us excellent adab with Him.
[Shaykh] Abdul-Rahim Reasat
Checked and Approved by Shaykh Faraz Rabbani
Shaykh Abdul-Rahim Reasat began his studies in Arabic Grammar and Morphology in 2005. After graduating with a degree in English and History he moved to Damascus in 2007 where, for 18 months, he studied with many erudite scholars. In late 2008 he moved to Amman, Jordan, where he continued his studies for the next six years in Sacred Law (fiqh), legal theory (Usul al-fiqh), theology, hadith methodology, hadith commentary, and Logic. He was also given licenses of mastery in the science of Quranic recital and he was able to study an extensive curriculum of Quranic sciences, tafsir, Arabic grammar, and Arabic eloquence.